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  • 2020-2024  (47)
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  • 1
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    Grain size distribution of sediment core NBP19-02_KC19 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Keywords: Antarctica; DEPTH, sediment/rock; Glaciomarine; Grain size, CILAS Laser Particle Analyser; Grain size, mean; Marine Sediment Core; Size fraction 〈 0.002 mm, clay; Size fraction 0.004-0.002 mm, 8.0-9.0 phi, very fine silt; Size fraction 0.008-0.004 mm, 7.0-8.0 phi, fine silt; Size fraction 0.016-0.008 mm, 6.0-7.0 phi, medium silt; Size fraction 0.032-0.016 mm, 5.0-6.0 phi, coarse silt; Size fraction 0.063-0.016 mm, coarse silt; Thwaites Glacier
    Type: Dataset
    Format: text/tab-separated-values, 315 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Geochemical and sedimentological analysis of the 12.2 m long, radiocarbon-dated JPC42 sediment core from Wide Channel (50°S; Chile) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We performed geochemical and sedimentological analyses on a 12.2 m long, radiocarbon-dated sediment core collected from Wide Channel (50°S; Chile) to reconstruct fluctuations of the marine-terminating HPS19, Penguin and Europa glaciers, located along the western side of the Southern Patagonian Icefield. The JPC42 sediment core was collected with a Jumbo Piston corer onboard the RV/IB Nathaniel B. Palmer in July 2005. An additional 1.5 m long Kasten core (KC41) was retrieved to sample the sediment-water interface. Both cores were scanned on an ITRAX XRF core scanner at WHOI in August 2008 and then sampled in 2 cm thick slices (ca.10 cm³) every 10 cm at the Marine and Geology Repository of Oregon State University in February 2021. Samples were freeze-dried at Ghent University, and all discrete analyses were performed at a 10 cm interval, except for CaCO3 in the lower 5.9 m of the core, which was analyzed at a 20 cm interval.
    Keywords: Bulk organic geochemistry; Calcium Carbonate; Grain Size; Holocene; inorganic geochemistry; Late Glacial; Neoglaciation; Patagonia; Patagonian fjords; stable carbon isotopes
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Geochemical and sedimentological data of the JPC42 sediment core from Wide Channel, Chile (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Organic geochemical and sedimentological data analyzed at a 10 to 20 cm interval on the JPC42 and KC41 cores including total organic carbon content, stable carbon isotopes, marine organic carbon content, calcium carbonate, grain-size mode, and ice-rafted debris (particles 〉150 µm).
    Keywords: After Troch et al., 2023; Bulk organic geochemistry; Calcium carbonate; Calcium Carbonate; Carbon, organic, total; Carbon, organic, total, marine; Depth, composite; Event label; Grain Size; Holocene; Ice rafted debris; inorganic geochemistry; JPC; JPC42; Jumbo Piston Core; KAL; Kasten corer; KC41; Late Glacial; Latitude of event; Longitude of event; Mode, grain size; Neoglaciation; Patagonia; Patagonian fjords; Sample ID; stable carbon isotopes; Wide Channel, Chile; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 953 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Mean ages calculated by the bayesian age-depth model of sediment core JPC42 from Wide Channel, Chile (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Age-depth model of the JPC42 sediment core. The core chronology is based on the radiocarbon ages published in Caniupán et al. (2014, doi:10.1016/j.yqres.2014.07.009). All radiocarbon ages were re-calibrated using the SHCal20 calibration curve (Hogg et al., 2020, doi:10.1017/RDC.2020.59) and a marine reservoir age of 780 yr (Caniupán et al., 2014). The age-depth model and sedimentation rates were calculated using the BACON 2.5.5 software (Blaauw and Christen, 2011, doi:10.1214/11-BA618) in R (R Core Team, 2020, https://www.R-project.org/), taking into account the instantaneous deposition of the four turbidites at 1089 - 1049, 551 - 516, 383 - 364, and 171 - 158 cm. The table contains the mean age of the sediment every 1 mm.
    Keywords: After Troch et al., 2023; AGE; BACON age modeling (2.5.5); Bulk organic geochemistry; Calcium Carbonate; Depth, composite; Grain Size; Holocene; inorganic geochemistry; JPC; JPC42; Jumbo Piston Core; Late Glacial; Neoglaciation; Patagonia; Patagonian fjords; stable carbon isotopes; Wide Channel, Chile
    Type: Dataset
    Format: text/tab-separated-values, 12179 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Predicted mean grain size of the JPC42 sediment core from Wide Channel (Chile), calculated following Liu et al. (2019) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Mean grain size predicted at a 2 mm resolution using the XRF intensities of Fe, K, Ti, Rb, Zr and Mn following Liu et al. (2019, doi:10.1029/2018GC008154). A set of 112 samples was used to calibrate the prediction model.
    Keywords: After Liu et al. (2019); After Troch et al., 2023; Bulk organic geochemistry; Calcium Carbonate; Depth, composite; Grain Size; Grain size, mean; Holocene; inorganic geochemistry; JPC; JPC42; Jumbo Piston Core; Late Glacial; Neoglaciation; Patagonia; Patagonian fjords; stable carbon isotopes; Wide Channel, Chile
    Type: Dataset
    Format: text/tab-separated-values, 12081 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    CT Number of sediment core NBP19-02_KC13 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Keywords: Antarctica; Computed tomography number; Computer tomography (CT); numerical value extracted from computed tomography scans of core sections using MATLAB software package; DEPTH, sediment/rock; Glaciomarine; Marine Sediment Core; Thwaites Glacier
    Type: Dataset
    Format: text/tab-separated-values, 11061 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Proxy data from sediment cores collected during research cruise NBP19-02 along the Thwaites Glacier ice front in the Amundsen Sea, 2019 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Sediment cores were collected aboard the RV/IB Nathaniel B. Palmer in 2019 along the Thwaites Glacier ice front in the eastern Amundsen Sea. A Kasten corer, jumbo gravity corer, and a megacorer were used to collect seafloor sediments. As part of the ITGC Thwaites Offshore Research project, proxy data were collected from these sediment records to understand recent glacial history in a rapidly changing area of Antarctica. Datasets include density, magnetic susceptibility, CT scans, shear strength, water content, pebble counts, sediment grain size distribution, grain roughness coefficients, clay mineral data, Pb-210 ages, and uncalibrated radiocarbon ages. Data are presented in the article, Synchronous retreat of Thwaites and Pine Island glaciers in response to external forcings in the presatellite era, in the Proceedings of the National Academy (DOI: 10.1073/pnas.2211711120).
    Keywords: Antarctica; Glaciomarine; Marine Sediment Core; Thwaites Glacier
    Type: Dataset
    Format: application/zip, 39 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    XRF core scanner geochemistry, PC1 scores and detrended PC1 scores of sediment core JPC42 from Wide Channel, Chile (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Inorganic geochemical data of the JPC42 and KC41 cores obtained by ITRAX XRF core scanning (Cox Analytical Instruments) at the Woods Hole Oceanographic Institution, PC1 scores, and detrended PC1 scores, at a resolution of 2 mm. The XRF scanner was operated with 20 s scan times using a Mo X- Ray tube set to 30 kV and 45 mA. Elemental variations are expressed in terms of centered log-ratios (clr) to avoid dilution effects and to overcome the closed-sum effect and non-negative nature of compositional data (Weltje et al., 2015, doi:10.1007/978-94-017-9849-5_21). The table contains both the raw (cps; counts per second) and processed clr (dimensionless) data. Principal Component Analysis (PCA) was conducted with XLSTAT v2016 and used to examine the covariance within the XRF core scanner data. Increasing PC1 scores are interpreted to represent a relative increase in terrestrial sediment supply, and vice versa.
    Keywords: After Troch et al., 2023; Bromine; Bromine (centered log ratio); Bulk organic geochemistry; Calcium; Calcium (centered log ratio); Calcium Carbonate; Chlorine; Chlorine (centered log ratio); DEPTH, sediment/rock; Grain Size; Holocene; inorganic geochemistry; Iron; Iron (centered log ratio); JPC; JPC42; Jumbo Piston Core; Late Glacial; Manganese; Manganese (centered log ratio); Neoglaciation; Patagonia; Patagonian fjords; Potassium; Potassium (centered log ratio); Principal component 1; Rubidium; Rubidium (centered log ratio); stable carbon isotopes; Strontium; Strontium (centered log ratio); Titanium; Titanium (centered log ratio); Wide Channel, Chile; Zirconium; Zirconium (centered log ratio)
    Type: Dataset
    Format: text/tab-separated-values, 130792 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Grain size distribution of sediment core NBP19-02_KC15 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Keywords: Antarctica; DEPTH, sediment/rock; Glaciomarine; Grain size, CILAS Laser Particle Analyser; Grain size, mean; Marine Sediment Core; Size fraction 〈 0.002 mm, clay; Size fraction 0.004-0.002 mm, 8.0-9.0 phi, very fine silt; Size fraction 0.008-0.004 mm, 7.0-8.0 phi, fine silt; Size fraction 0.016-0.008 mm, 6.0-7.0 phi, medium silt; Size fraction 0.032-0.016 mm, 5.0-6.0 phi, coarse silt; Size fraction 0.063-0.016 mm, coarse silt; Thwaites Glacier
    Type: Dataset
    Format: text/tab-separated-values, 322 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Clay minearlogy of sediment cores from cruise NBP19-02 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Keywords: Amundsen Sea; Antarctica; Chlorite; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; Elevation of event; Event label; Glaciomarine; Illite; KAL; Kaolinite; Kasten corer; Latitude of event; Longitude of event; Marine Sediment Core; Nathaniel B. Palmer; NBP19-02; NBP19-02_KC04; NBP19-02_KC15; NBP19-02_KC19; Smectite; Thwaites Glacier; X-ray diffraction (XRD)
    Type: Dataset
    Format: text/tab-separated-values, 258 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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